1. T.K. Hemmick for the Stony Brook Crew
Stony Brook Update
T.K. Hemmick for the Stony Brook Crew

2. Now we dry… All the GEMs are in. All the tests are done (twice):
Capacitance while connected.
Voltages on cables.
Glove Box being used as dryer:
50 cfm….~1400 liters/minute.
4.5 ppm and falling…

3. Odds and Ends: Schedule: Flashing the detector.
Dry the detector all this week.
Remove from glove box Monday Oct 9.
Ship to BNL Monday October 16.
Flashing the detector.
I personally don’t like the LED option:
QE at 250 nm is probably dominated by thermal noise.
The real test is QE at low wavelengths!
The only reason that we can’t flash normal lamps is that Hamamatsu uses transformers.
I am 100% certain we can flash a normal lamp.
Transformer in base is removable and non-magnetic circuit is easy to design and build.
So…put 4 lamps on the detector…put electronics far far away.